Advanced Configuration and Power Interface


The Advanced Configuration and Power Interface (ACPI) specification is an industry standard, provided by the UEFI forum, where Arm is a board member. ACPI has two key purposes:

  • It provides a standardized, operating system-agnostic description of a computer’s configuration and its various components. This enables an operating system to enquire and adapt itself to the system’s properties, and to associate drivers with its system peripherals.
  • It provides platform interfaces for power and system management.

For systems based on the Arm architecture, ACPI provides a description of various key components, such as:

Latest ACPI Specifications

ACPI for Arm Components Specification

Learn more about ACPI specifications.

ACPI for Arm Memory Partitioning and Monitoring Specification 

Download the Arm Functional Fixed Hardware Specification.

ACPI for Arm Reliability, Availability, and Serviceability (RAS) Extension Specification

Read more about the IO Remapping Table.